lakinyof thompsonville



' J. A! LAKIN.

Heating Drum.

Patented July 14, 1868.

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Letters Patent .No. 79,841, dated July 14, 1868.

IMPROVEMENT IN RADIATOES.

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TO ALL WHOM IT MAY CONCERN:

7 Be it known that I, J. A. LAKIN, of Thompsonville, Hartford county, State of Connecticut, have invented a new and useful Improved Radiator; and I do hereby declare that the following is a fulland clear description thereof, reference being had to the accompanying drawings, and to the letters of reference marked thereon.

In the drawings Figure 1 is a side view of my invention, and

Figure 2 shows its application,

Figure 3 being adetail view of the device, in part.

This invention consists of a peculiarly-shaped radiator, as hereafter explained, for the purpose of raising the temperature of a house or room, by means of the increased radiating-surface obtained by the application of this-device to an ordinary cooking-stove,'thus employing the latter as a furnace, and saving a large proportion of heat that would otherwise be lost through the chimney. A

In construction, I form my radiators in the form of inverted frusta of cones, surmounted by cones at the top. These are shells of metal, and are open at the lower ends for the heat to enter. 1 They have handles, A, and are connected together by means of pipcs, B and B, projecting from the sides opposite the handles A.

In fig. 1, two of these parts are shown, connected together by means of these pipes, the pipe B being made small enough to fit into the pipe B. The object of this arrangement of connecting-pipes willbe hereafter explained. In fi 3, a detailed sectional view of one of the parts of the radiator is shown, and in fig. 2 a com plete set is shown'applied to a stove, cachpair beingjoined together as heretofore described.

The lower rim of each part of the radiator is madcto fit-into tho holes in the top of the stove, and sets down upon the little ledge running around the under edge of each hole of the stove. By joining. the parts together by means of, the pipes B and B, the heat is distributed equally through each pair, although one side of the stove bemore heatedthan the other. Besides this, it makes them less liable to be upset, and. the arrangement of one pipe fitting inside the other renders each pair adjustable toany ordinary distance between the holes in the stove. v I

The shape of these parts of the radiator is made upon the well-known principle. of heat crowdingfrom 013' points or edges, and by forming the lower part in the shape shown,.I obtain several advantages, as follows:

By the bulge being near the top, more of a suction is produced, and a better circulation of heated air obtained. Again, by making each side of the maximum diameter of the shell convergent, I obtain greater strength, and besides, expose lesssurfaceahthc bottom'to the action of the fire direct; and again am enabled to use a larger radiator for the size of the stove-hole than could otherwise be obtained without increasing the height of the radiators or forming them with shoulders at the bottom.

Theseradiators may be used in chambers by themselves, and connected with the fire by means of pipes in this case the bottom ends are not open. 7

Now, having described my invention,'what I claim as new, and desire. to secure by Letters Patent, is The peculiarly-shaped radiators herein shown, open at the lower ends, and connected inpairs by means of the pipes 13 and B, substantially in the manner nnd for the purpose herein shown.

- J. A. LAKIN.

Witnesses:

HYDE, J. B. GARDlNl-ii... 

